I need help with my futaba 4pks transmitter. I have one 1/10 buggy with a 17.5 tekin rs pro and I also have another 1/10 buggy with a 7.5 tekin rs pro. The issue I am having is that every once in awhile it will lose the brakes (usually after handing it over for someone else to try). Its done it on both setups and the only way for me to fix it is to go into the transmitter and select a different model and reprogram everything. Any help would be greatly appreciated. Thanks in advance